important:

* PIThread::~PIThread() now unregister itself from introspection, if terminates than show warning
 * PISystemMonitor now correctly stops
 * PIPeer now can correctly stopAndWait
 * PIPeer::destroy(), protected method for close all eths and threads
 * new PIINTROSPECTION_STOP macro
 * Introspection now can be correctly stopped by macro, more safety

ClientServer:
 * ClientBase::close() stop and disconnect channel
 * Server clients clean-up now event-based
 * No warnings on client destructor

libs/main/io_devices/pipeer.h

@@ -171,6 +171,8 @@ protected:
 	EVENT_HANDLER2(bool, dataRead, const uchar *, readed, ssize_t, size);
 	EVENT_HANDLER2(bool, mbcastRead, const uchar *, readed, ssize_t, size);
 
+	void destroy();
+
 private:
 	EVENT_HANDLER1(void, timerEvent, int, delim);
 	EVENT_HANDLER2(bool, sendInternal, const PIString &, to, const PIByteArray &, data);
@@ -212,6 +214,7 @@ private:
 	void configureFromVariantDevice(const PIPropertyStorage & d) override;
 	ssize_t readDevice(void * read_to, ssize_t max_size) override;
 	ssize_t writeDevice(const void * data, ssize_t size) override;
+	void interrupt() override;
 	DeviceInfoFlags deviceInfoFlags() const override { return PIIODevice::Reliable; }
 
 	PeerInfo * quickestPeer(const PIString & to);
@@ -243,6 +246,7 @@ private:
 	mutable PIMutex read_buffer_mutex;
 	PIQueue<PIByteArray> read_buffer;
 	int read_buffer_size;
+	std::atomic_bool iterrupted = {false};
 	PIMutex mc_mutex, eth_mutex, peers_mutex, send_mutex, send_mc_mutex;
 };